Abstract: A pipeline communication system. The system uses the pipeline and the adjacent ground and includes branches with junctions. Governor modules and transformers/rectifiers form part of the network. Monitors periodically provide information to the network controller. The system control receives information by way of an outstation to provide two-way communication and control using the pipeline and adjacent ground as conductors. Typically, the information in the form of fast frequency shift keying modulation is superimposed on the cathodic pipe protection system.
Type:
Grant
Filed:
November 16, 1999
Date of Patent:
December 24, 2002
Assignee:
Transco PLC
Inventors:
David Austin, Koos Broekhuizen, Paul Beaumont Cordes, Gerard Terence Foster
Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
Type:
Application
Filed:
June 11, 2002
Publication date:
October 24, 2002
Applicant:
Dresser Industries, Inc.
Inventors:
Jean Michel Beique, Morris Benjamin Robbins
Abstract: An apparatus and a method for controlling oilfield production to improve efficiency includes a remote sensing unit that is placed within a subsurface formation, an antenna structure for communicating with the remote sensing unit, a casing joint having nonconductive “windows” for allowing a internally located antenna to communicate with the remote sensing unit, and a system for obtaining subsurface formation data and for producing the formation data to a central location for subsequent analysis. The remote sensing unit is placed sufficiently far from the wellbore to reduce or eliminate effects that the wellbore might have on formation data samples taken by the remote sensing unit. The remote sensing unit is an active device with the capability of responding to control commands by determining certain subsurface formation characteristics such as pressure or temperature, and transmitting corresponding data values to a wellbore tool.
Type:
Application
Filed:
April 3, 2002
Publication date:
October 17, 2002
Applicant:
SCHLUMBERGER TECHNOLOGY CORPORATION
Inventors:
Jacques Tabanou, Reinhart Ciglenec, Clive Eckersley, Christian Chouzenoux
Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
Type:
Application
Filed:
June 11, 2002
Publication date:
October 17, 2002
Applicant:
Dresser Industries, Inc.
Inventors:
Jean Michel Beique, Morris Benjamin Robbins
Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
Type:
Application
Filed:
June 11, 2002
Publication date:
October 17, 2002
Applicant:
Dresser Industries, Inc.
Inventors:
Jean Michel Beique, Morris Benjamin Robbins
Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
Type:
Application
Filed:
June 11, 2002
Publication date:
October 17, 2002
Applicant:
Dresser Industries, Inc.
Inventors:
Jean Michel Beique, Morris Benjamin Robbins
Abstract: The present invention includes a well system having a sensor; a controller for converting the sensor output, a signal conducting mass, an actuator for inducing an acoustic wave the signal conducting mass, a reaction mass, an acoustic wave receiver up-hole, and a processor for processing a signal from the acoustic wave receiver and for delivering the processed signal to an output device.